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Clean commercial conference room in a Seattle-area office after nightly janitorial service

Commercial janitorial

Commercial Janitorial Services in Seattle, Bellevue & Tacoma

Recurring janitorial cleaning for offices, clinics, warehouses, retail, and multi-tenant buildings — run against a written scope of work by an assigned crew that knows your facility.

Request a free walk-through (253) 271-4050

97.23%

Client retention

10+ Years

Cleaning Puget Sound facilities

11 Minutes

Avg. customer response time

Month-to-Month

No long-term lock-in

You judge a janitorial company by the 50th visit, not the first.

Almost any commercial cleaning company can impress you on the first night. The crew is fresh, the owner is watching, and the building gets more attention than the contract pays for. The visit that decides whether you keep the vendor is the fiftieth — when the account has gone quiet, nobody is inspecting, and the standard either holds or quietly slides.

Cascade Clean Group is built for visit fifty. Every janitorial account in the Greater Seattle area runs against a documented scope of work written during an on-site walk-through, not a generic checklist. Your building is staffed by an assigned, background-checked crew that learns your floor plan, your access protocols, and the three things your tenants actually notice. One named point of contact owns the account and answers the phone — our average response time to a client message is 11 minutes.

That is why 97.23% of our clients are still with us, on month-to-month agreements, after more than ten years serving Seattle, Bellevue, Tacoma, and the surrounding cities. Nobody here is locked in by paperwork.

Why businesses switch

Why Puget Sound businesses choose Cascade Clean Group for recurring janitorial

01

An assigned crew, not a rotating roster of subcontractors

Your building is cleaned by the same people week after week. They are employees on our payroll — uniformed, background-checked before they ever get keys, and trained on your specific scope of work rather than a generic janitorial script. That continuity is the whole game in commercial cleaning: a crew that has cleaned your suite forty times knows which conference room hosts clients on Tuesdays, which restroom runs out of paper first, and which door alarms if you prop it. A crew booked through a staffing app never learns any of it. We are licensed, bonded, and fully insured, and we send certificates of insurance and W-9s to your property manager on request.

02

One named account manager with scheduled check-ins

Every account is assigned an account manager on day one, with regular check-ins built into how we operate rather than offered when something goes wrong. You get a direct line — not a call center, not a shared inbox, not a voicemail box someone clears on Monday. Average response time on a client question is 11 minutes. Supervisors run documented walk-throughs on a set cadence and log what they find, so issues surface from our side before they land in your inbox. Manage several buildings? One account manager coordinates the whole portfolio under a single point of contact and one consolidated invoice.

03

Month-to-month agreements and a 97.23% retention rate

We do not use long-term contracts to hold accounts. Every janitorial agreement is month-to-month, and 97.23% of clients renew anyway — because the crew shows up, the scope is followed, and someone picks up the phone. If your current vendor requires an annual commitment to keep your business, that tells you what the work is worth. Pricing is a fixed monthly number built from your square footage, floor types, fixture counts, and frequency, with no surprise line items. Supplies and consumables can be bundled into the monthly rate or billed at cost — your call.

Request a free walk-through (253) 271-4050

What our commercial janitorial service includes

Every scope is written on site before we quote a price, so you are only paying for the work your building actually needs. All service performed with commercial-grade equipment and cleaning agents backed by safety data sheets. Low-VOC and green-certified product options available for clinics, childcare, and sensitive environments.

  • Nightly, weekly, or custom-frequency service scheduled around your operating hours
  • Dusting of desks, surfaces, sills, vents, and high ledges
  • Vacuuming of carpet, walk-off mats, and entry areas
  • Sweeping, dust-mopping, and damp-mopping of all hard floors
  • Restroom cleaning and sanitation, fixture to floor
  • Restroom consumable restocking (paper, soap, liners)
  • Breakroom and kitchenette detail — counters, sinks, tables, appliance exteriors
  • Trash collection, liner replacement, and recycling handling
  • High-touch disinfection: door handles, light switches, elevator buttons, shared equipment
  • Interior glass, partitions, and entryway door cleaning
  • Lobby and reception presentation detail
  • Conference and training room reset
  • Elevator, stairwell, and corridor cleaning
  • Common-area and amenity-space upkeep for multi-tenant properties
  • Locker room and shower cleaning where applicable
  • Spot carpet treatment for spills and traffic lanes
  • Hard floor scrubbing, burnishing, and periodic refinishing
  • Baseboard, corner, and edge detail on a rotating schedule
  • Interior window sill and blind dusting
  • Wall spot cleaning and fingerprint removal
  • Exterior entry sweep and cigarette-butt pickup
  • Day porter coverage available during business hours
  • Supply inventory monitoring and reorder recommendations
  • Light-bulb and fixture condition reporting
  • Emergency and same-day response for spills, events, and inspections
  • After-hours, weekend, and holiday scheduling
  • Documented supervisor inspections and quality scorecards
  • Written scope of work, updated whenever your building changes
Freshly cleaned office hallway and glass partitions in a commercial building

How often should your building be cleaned?

Frequency is driven by headcount, foot traffic, and how visible the space is to your customers. Here is what we typically recommend across the Puget Sound buildings we service — your walk-through confirms it.

FrequencyBest fitWhat a visit covers
5–7 nights per weekMedical and dental offices, busy retail, dealerships, food-adjacent spaces, buildings with 30+ people on siteFull janitorial every night: restrooms, trash, floors, high-touch disinfection, breakroom reset.
3 nights per weekSmall to mid-size professional offices, clinics with lighter patient volume, showroomsFull service on scheduled nights, with restroom and trash service prioritized between visits.
1–2 nights per weekLow-headcount offices, hybrid workplaces, warehouses with small office areas, churchesComplete clean on service nights plus a rotating detail schedule for floors, glass, and edges.
Monthly or periodicRarely occupied suites, seasonal facilities, and buildings that keep janitorial in-houseDeep-clean projects: floor refinishing, carpet extraction, high dusting, window cleaning.

Facilities we clean

Janitorial programs built for your type of building

A dental office, a distribution warehouse, and a 200-unit apartment building do not need the same janitorial scope. Each of these programs is scoped separately.

Offices & Corporate — commercial janitorial in the Greater Seattle area

Offices & Corporate

Clean workspaces that your team notices and your visitors trust — serviced after hours so nobody works around a vacuum.

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Medical & Dental — commercial janitorial in the Greater Seattle area

Medical & Dental

Clinical spaces cleaned to protocol, with documented disinfection and crews trained on patient-area expectations.

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Property Management — commercial janitorial in the Greater Seattle area

Property Management

Common areas, amenity spaces, and turnovers handled across your portfolio with one point of contact.

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Industrial & Warehouse — commercial janitorial in the Greater Seattle area

Industrial & Warehouse

High-square-footage facilities where safety, dust control, and floor condition drive everything else.

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Retail & Grocery — commercial janitorial in the Greater Seattle area

Retail & Grocery

Sales floors, entries, and restrooms kept guest-ready with nightly service and consistent floor care.

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Auto Dealerships — commercial janitorial in the Greater Seattle area

Auto Dealerships

Showroom glass, service bays, and customer lounges — the three places every buyer forms an opinion.

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Schools & Childcare — commercial janitorial in the Greater Seattle area

Schools & Childcare

Classrooms, hallways, and restrooms cleaned and disinfected on a schedule that fits the school calendar.

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How it works

From first call to first cleaning

  1. 1

    Request a walk-through

    Call or send the form. Two minutes, no commitment, no pressure from a salesperson who has never held a mop.

  2. 2

    We respond fast

    Our average response time to a new inquiry is 11 minutes during business hours. We confirm the details and schedule your on-site visit.

  3. 3

    On-site scoping

    We walk your facility and document square footage, floor types, fixture counts, headcount, high-touch surfaces, access and security protocols, and your operating hours.

  4. 4

    Line-item quote

    You get a written scope of work with a fixed monthly price, the service cadence, crew composition, and local references you can actually call.

  5. 5

    Service start

    Month-to-month agreement, account manager introduced, assigned crew trained on your building before their first night.

Service area

Commercial janitorial across Seattle, Bellevue & Tacoma

Cascade Clean Group is locally owned and has cleaned Puget Sound facilities for more than ten years. Crews are dispatched across Seattle Bellevue Tacoma & surrounding cities, so your account is managed by people who can be at your building the same day.

  • Seattle
  • Tacoma
  • Bellevue
  • Kent
  • Everett
  • Renton
  • Federal Way
  • Kirkland
  • Auburn
  • Redmond
  • Sammamish
  • Lakewood
  • Shoreline
  • Olympia
  • Lacey
  • Puyallup
  • Gig Harbor

Related commercial services

All commercial servicesIndustries we serveContact us
Commercial office building interior serviced by Cascade Clean Group

Instant estimate

Build your janitorial estimate

Adjust the inputs below for a real-time monthly range. Final pricing is confirmed after a free on-site walk-through.

3,000 sq ft
5005,000+

Buildings over 5,000 sq ft are priced after a free on-site walk-through.

Cleaning frequency

Scope of work

Add-ons

Estimated monthly range

$2,190–$2,540

Roughly $105 per visit across ~22 visits per month.

Based on a standard office mix (2.0 labor hours per visit). Confirmed after a free walk-through.

Send this estimate to our team and we'll confirm the exact price.

Or call (253) 271-4050 — we answer.

FAQ

Commercial janitorial questions, answered

Ready for a cleaner building?

Request your free walk-through. You get a written scope of work, a fixed monthly price, an assigned crew, and a month-to-month agreement — plus an account manager who replies in about 11 minutes.

Request a free walk-through (253) 271-4050